v3.26.3
Loans (Credit Quality Indicators Vintage) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]          
Total loans [1] $ 5,164,852   $ 5,164,852   $ 5,134,388
Gross charge-offs, current year     238   372
Gross charge-offs, prior year     0   0
Gross charge-offs, two years ago     0   8,346
Gross charge-offs, three years ago     1   0
Gross charge-offs, four years ago     3,830   0
Gross charge-offs, five years ago or more     2   6,017
Gross charge-offs, revolving loans     1   0
Gross charge-offs, revolving loans converted to term loans     0   0
Total gross charge-offs     4,072 $ 14,648 14,735
Basis adjustment associated with fair value hedges (2,200)   (2,200)   (335)
Financing Receivable          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 687,594   687,594   739,363
Term loans amortized cost, prior year 634,519   634,519   206,495
Term loans amortized cost, two years ago 168,966   168,966   743,308
Term loans amortized cost, three years ago 567,472   567,472   1,348,951
Term loans amortized cost, four years ago 1,210,308   1,210,308   676,185
Term loans amortized cost, five years ago or more 1,548,020   1,548,020   1,090,180
Revolving loans amortized cost 333,713   333,713   313,376
Revolving loans converted to term loans 16,470   16,470   16,865
Total loans 5,167,062   5,167,062   5,134,723
Commercial real estate          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 387,240   387,240   465,820
Term loans amortized cost, prior year 365,139   365,139   102,312
Term loans amortized cost, two years ago 75,906   75,906   338,922
Term loans amortized cost, three years ago 209,424   209,424   517,754
Term loans amortized cost, four years ago 440,192   440,192   302,383
Term loans amortized cost, five years ago or more 628,087   628,087   446,426
Revolving loans amortized cost 9,542   9,542   9,426
Revolving loans converted to term loans 905   905   942
Total loans [2] 2,116,435   2,116,435   2,183,985
Gross charge-offs, current year     0   0
Gross charge-offs, prior year     0   0
Gross charge-offs, two years ago     0   0
Gross charge-offs, three years ago     0   0
Gross charge-offs, four years ago     3,830   0
Gross charge-offs, five years ago or more     0   5,715
Gross charge-offs, revolving loans     0   0
Gross charge-offs, revolving loans converted to term loans     0   0
Total gross charge-offs 3,830 $ 2,991 3,830 5,715 5,715
Commercial real estate | Pass [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 383,514   383,514   432,404
Term loans amortized cost, prior year 330,129   330,129   102,312
Term loans amortized cost, two years ago 75,906   75,906   338,922
Term loans amortized cost, three years ago 197,442   197,442   490,011
Term loans amortized cost, four years ago 436,323   436,323   302,383
Term loans amortized cost, five years ago or more 622,056   622,056   438,112
Revolving loans amortized cost 9,542   9,542   9,426
Revolving loans converted to term loans 905   905   942
Total loans 2,055,817   2,055,817   2,114,512
Commercial real estate | Special Mention [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 3,726   3,726   33,416
Term loans amortized cost, prior year 28,436   28,436   0
Term loans amortized cost, two years ago 0   0   0
Term loans amortized cost, three years ago 11,982   11,982   27,743
Term loans amortized cost, four years ago 3,869   3,869   0
Term loans amortized cost, five years ago or more 0   0   2,157
Revolving loans amortized cost 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans 48,013   48,013   63,316
Commercial real estate | Classified [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 0   0   0
Term loans amortized cost, prior year 6,574   6,574   0
Term loans amortized cost, two years ago 0   0   0
Term loans amortized cost, three years ago 0   0   0
Term loans amortized cost, four years ago 0   0   0
Term loans amortized cost, five years ago or more 6,031   6,031   6,157
Revolving loans amortized cost 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans 12,605   12,605   6,157
Commercial & industrial          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 133,384   133,384   91,092
Term loans amortized cost, prior year 95,857   95,857   40,344
Term loans amortized cost, two years ago 38,400   38,400   54,047
Term loans amortized cost, three years ago 50,811   50,811   129,288
Term loans amortized cost, four years ago 115,694   115,694   21,278
Term loans amortized cost, five years ago or more 156,497   156,497   163,572
Revolving loans amortized cost 70,695   70,695   64,146
Revolving loans converted to term loans 279   279   315
Total loans [3] 661,617   661,617   564,082
Gross charge-offs, current year     41   49
Gross charge-offs, prior year     0   0
Gross charge-offs, two years ago     0   8,345
Gross charge-offs, three years ago     0   0
Gross charge-offs, four years ago     0   0
Gross charge-offs, five years ago or more     0   299
Gross charge-offs, revolving loans     0   0
Gross charge-offs, revolving loans converted to term loans     0   0
Total gross charge-offs 12 8,357 41 8,681 8,693
Commercial & industrial | Pass [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 133,384   133,384   87,523
Term loans amortized cost, prior year 95,857   95,857   39,556
Term loans amortized cost, two years ago 37,628   37,628   54,047
Term loans amortized cost, three years ago 50,811   50,811   125,846
Term loans amortized cost, four years ago 115,332   115,332   20,057
Term loans amortized cost, five years ago or more 156,371   156,371   159,707
Revolving loans amortized cost 70,694   70,694   58,146
Revolving loans converted to term loans 279   279   315
Total loans 660,356   660,356   545,197
Commercial & industrial | Special Mention [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 0   0   3,569
Term loans amortized cost, prior year 0   0   788
Term loans amortized cost, two years ago 772   772   0
Term loans amortized cost, three years ago 0   0   3,442
Term loans amortized cost, four years ago 0   0   1,095
Term loans amortized cost, five years ago or more 0   0   3,865
Revolving loans amortized cost 0   0   6,000
Revolving loans converted to term loans 0   0   0
Total loans 772   772   18,759
Commercial & industrial | Classified [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 0   0   0
Term loans amortized cost, prior year 0   0   0
Term loans amortized cost, two years ago 0   0   0
Term loans amortized cost, three years ago 0   0   0
Term loans amortized cost, four years ago 362   362   126
Term loans amortized cost, five years ago or more 126   126   0
Revolving loans amortized cost 1   1   0
Revolving loans converted to term loans 0   0   0
Total loans 489   489   126
Residential real estate          
Financing Receivable, Credit Quality Indicator [Line Items]          
Total loans [4] 2,030,656   2,030,656   2,050,399
Gross charge-offs, current year     0   0
Gross charge-offs, prior year     0   0
Gross charge-offs, two years ago     0   0
Gross charge-offs, three years ago     0   0
Gross charge-offs, four years ago     0   0
Gross charge-offs, five years ago or more     0   0
Gross charge-offs, revolving loans     0   0
Gross charge-offs, revolving loans converted to term loans     0   0
Total gross charge-offs 0 0 0 0 0
Residential real estate | Financing Receivable          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 145,947   145,947   161,291
Term loans amortized cost, prior year 155,659   155,659   50,709
Term loans amortized cost, two years ago 44,572   44,572   332,253
Term loans amortized cost, three years ago 291,975   291,975   690,150
Term loans amortized cost, four years ago 644,304   644,304   345,581
Term loans amortized cost, five years ago or more 750,409   750,409   470,750
Revolving loans amortized cost 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans 2,032,866   2,032,866   2,050,734
Residential real estate | Current [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 145,947   145,947   161,291
Term loans amortized cost, prior year 155,659   155,659   50,709
Term loans amortized cost, two years ago 44,572   44,572   332,253
Term loans amortized cost, three years ago 291,209   291,209   690,150
Term loans amortized cost, four years ago 640,650   640,650   345,038
Term loans amortized cost, five years ago or more 744,174 [5]   744,174 [5]   462,198 [6]
Revolving loans amortized cost 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans 2,022,211 [5]   2,022,211 [5]   2,041,639 [6]
Residential real estate | Past Due [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 0   0   0
Term loans amortized cost, prior year 0   0   0
Term loans amortized cost, two years ago 0   0   0
Term loans amortized cost, three years ago 766   766   0
Term loans amortized cost, four years ago 3,654   3,654   543
Term loans amortized cost, five years ago or more 6,235   6,235   8,552
Revolving loans amortized cost 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans 10,655   10,655   9,095
Home equity          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 18,676   18,676   16,839
Term loans amortized cost, prior year 14,239   14,239   10,542
Term loans amortized cost, two years ago 8,178   8,178   14,720
Term loans amortized cost, three years ago 12,486   12,486   9,969
Term loans amortized cost, four years ago 8,663   8,663   5,327
Term loans amortized cost, five years ago or more 9,505   9,505   6,309
Revolving loans amortized cost 253,220   253,220   239,548
Revolving loans converted to term loans 15,286   15,286   15,608
Total loans 340,253   340,253   318,862
Gross charge-offs, current year     0   0
Gross charge-offs, prior year     0   0
Gross charge-offs, two years ago     0   0
Gross charge-offs, three years ago     0   0
Gross charge-offs, four years ago     0   0
Gross charge-offs, five years ago or more     0   0
Gross charge-offs, revolving loans     0   0
Gross charge-offs, revolving loans converted to term loans     0   0
Total gross charge-offs 0 0 0 0 0
Home equity | Current [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 18,676   18,676   16,839
Term loans amortized cost, prior year 14,239   14,239   10,508
Term loans amortized cost, two years ago 8,106   8,106   14,662
Term loans amortized cost, three years ago 12,428   12,428   9,969
Term loans amortized cost, four years ago 8,423   8,423   5,190
Term loans amortized cost, five years ago or more 9,166   9,166   6,086
Revolving loans amortized cost 252,705   252,705   238,734
Revolving loans converted to term loans 14,508   14,508   15,267
Total loans 338,251   338,251   317,255
Home equity | Past Due [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 0   0   0
Term loans amortized cost, prior year 0   0   34
Term loans amortized cost, two years ago 72   72   58
Term loans amortized cost, three years ago 58   58   0
Term loans amortized cost, four years ago 240   240   137
Term loans amortized cost, five years ago or more 339   339   223
Revolving loans amortized cost 515   515   814
Revolving loans converted to term loans 778   778   341
Total loans 2,002   2,002   1,607
Other          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 2,347   2,347   4,321
Term loans amortized cost, prior year 3,625   3,625   2,588
Term loans amortized cost, two years ago 1,910   1,910   3,366
Term loans amortized cost, three years ago 2,776   2,776   1,790
Term loans amortized cost, four years ago 1,455   1,455   1,616
Term loans amortized cost, five years ago or more 3,522   3,522   3,123
Revolving loans amortized cost 256   256   256
Revolving loans converted to term loans 0   0   0
Total loans [7] 15,891   15,891   17,060
Gross charge-offs, current year     197   323
Gross charge-offs, prior year     0   0
Gross charge-offs, two years ago     0   1
Gross charge-offs, three years ago     1   0
Gross charge-offs, four years ago     0   0
Gross charge-offs, five years ago or more     2   3
Gross charge-offs, revolving loans     1   0
Gross charge-offs, revolving loans converted to term loans     0   0
Total gross charge-offs 68 $ 111 201 $ 252 327
Other | Current [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 2,318   2,318   4,295
Term loans amortized cost, prior year 3,610   3,610   2,588
Term loans amortized cost, two years ago 1,910   1,910   3,366
Term loans amortized cost, three years ago 2,776   2,776   1,790
Term loans amortized cost, four years ago 1,455   1,455   1,616
Term loans amortized cost, five years ago or more 3,520   3,520   3,123
Revolving loans amortized cost 256   256   256
Revolving loans converted to term loans 0   0   0
Total loans 15,845   15,845   17,034
Other | Past Due [Member]          
Financing Receivable, Credit Quality Indicator [Line Items]          
Term loans amortized cost, current year 29   29   26
Term loans amortized cost, prior year 15   15   0
Term loans amortized cost, two years ago 0   0   0
Term loans amortized cost, three years ago 0   0   0
Term loans amortized cost, four years ago 0   0   0
Term loans amortized cost, five years ago or more 2   2   0
Revolving loans amortized cost 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans $ 46   $ 46   $ 26
[1] Includes net unamortized loan origination costs of $11.3 million and $11.0 million, respectively, at September 30, 2026 and December 31, 2025 and net unamortized premiums on loans purchased from and serviced by other financial institutions of $181 thousand and $198 thousand, respectively, at September 30, 2026 and December 31, 2025.
[2] CRE consists of commercial mortgages primarily secured by non-owner occupied income-producing property, as well as construction and development loans. Construction and development loans are made to businesses for land development or the on-site construction of industrial, commercial, or residential buildings.
[3] C&I consists of loans to businesses and individuals, a portion of which are fully or partially collateralized by owner occupied real estate.
[4] Residential real estate consists of mortgage and homeowner construction loans secured by one- to four-family residential properties. Also, includes negative basis adjustments associated with fair value hedges of $2.2 million and $335 thousand, respectively, at September 30, 2026 and December 31, 2025. See Note 6 for additional disclosure.
[5] Excludes a $2.2 million negative basis adjustment associated with fair value hedges. See Note 6 for additional disclosure.
[6] Excludes a $335 thousand negative basis adjustment associated with fair value hedges. See Note 6 for additional disclosure.
[7] Other consists of loans to individuals secured by general aviation aircraft and other personal installment loans.